A photographer enlarges a picture to hang on his wall. The original picture is 5 inches long and 4 wide. The new picture is 22 inches long and 17.6 inches wide. What scale factor did the photographer use?

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

given hc ∥ gd.¯¯¯¯¯¯which statement is true

step-by-step explanation:

∠cbe and ∠deb are same-side interior angles

so, converting firstly the mixed fractions to improper fractions and then "adding".